/Engine/Source/Runtime/RHI/Public/DynamicRHI.h
virtual void RHIUnmapStagingSurface_RenderThread ( class [FRHICommandListImmediate](API\Runtime\RHI\FRHICommandListImmediate) & RHICmdList, [FRHITexture](API\Runtime\RHI\FRHITexture) * Texture, uint32 GPUIndex )